Improvement in lamp-burners



G. K. OSBORN. Lamp-Burner.

No. 220,725. Patented Oct. 21, 1879.

UNITED STATES PATENT OEEIoE.

GEORGE K. OSBORN, OF BROOKLYN, ASSIGNOR TO THE UNITED STATES ILLUMINATING COMPANY, OF NEW YORK, N. Y.

IMPROVEMENT IN LAM P-BURNERS.

Specification forming part of Letters Patent No. 220,725, dated October 21, 1879; application filed September 19, 1879.

To all whom it may concern:

Be it known that I, GEORGE K. OSBORN, of Brooklyn, in the county of Kings and State of New York, have invented certain Improvements in Burners, of which the following is a specification.

The principal object of this invention is to produce a burner that will supply the wick freely with oil, and yet be free from drip and odor.

To this end the invention consists, partly, in a slide embracing the wick-tube, and arranged to play up and down in the vaporizingcavity and partly in the wick-tube of sheet metal provided with a tip of wire-gauze.

It also consists in various combinations of parts, all as will be hereinafter set forth.

In the drawings, Figure 1 is a perspective view of my burner, comprising the wick-tube and its attachments. Fig. 2 is a vertical midsection of the same through the broad way of the wick. Fig. 3 'is a vertical mid-section taken in a plane at right angles to the plane of Fig. 2. p

Arepresents an ordinary wick-tube of sheet metal, provided with a tip, a, of wire-gauze, securely affixed to the wick-tube and forming a continuation of the same, through which the wick plays.

B is the shell or wall of an annular cavity, 1), which I call a vaporizing-cavity. This cavity entirely surrounds the wick-tube, and is open only at the top. Such oil as may pass over into it, owing to undue capillarity, will be vaporized and rise so as to impinge directly upon and feed the flame Thus no disagreeable odor is emitted by reason of the overflow, all of the odorous emanation being burned.

O is a slide, which fits snugly around the Wick-tube, but which may be readily adjusted up and down upon the tube within the cavity b by means ofa handle, 0, or other equivalent mechanism. The slide serves the twofold purpose of increasing and diminishing the flame by exposing and covering, at different times, more or less of the gauze tip, and of transmitting heat from the flame to the overflow oil being vaporized in the cavity 12. This materially assists in the elevation of the temperature and consequent vaporization.

By providing the burner-tube with a gauze tip I obtain a better and larger flame than is had from a simple tube of sheet metal, and at the same time combine with it all the advantages arising from the sheet-metal body.

the wick by closely embracing it, yet permits the vaporized oil to burn at the sides as well as at the top of the wick, being controlled by theslide.

D is an aperture, through which the oil passes to reach the wick.

Though shown as applied to a flat wick, it is obvious that my improvements might also be applied to a cylindrical or Argand burner, if desired.

Heretofore drip-cups have been applied to burners to catch the overflow and return it to the lamp, and wicks made of gauze stuffed with asbestus, mineral wool, and other noncombustible substances have been used but none of these form any part of my present invention.

Having thus described my claim 1. In a burner, a wick-tube, A, of sheet metal having a tip, a, of wire-gauze attached thereto and forming a substantial continuation or elongation of the same, the said tip being arranged to closely embrace the wick throughout, substantially as and for the.purposes set forth.

2. In a burner, the combination of the wicktube A, having a prolongation or tip of wiregauze fixed thereto, a vaporizing-cavity, 1), surrounding the upper part of said tube, and a slide, G, arranged to be moved up and down inside, or partly inside, of the said cavity and to embrace some part of the gauze tip, substantially as set forth.

invention, I

3. In a burner, a sheet-metal wick-tube, A, metal wick-tube, A, having a gauze tip, a, athaving a gauze tip, a, in combination with a tached to and forming a prolongation of the slide, 0, having a handle, 0, or its equivalent, same, with the shell or wall B, attached to said substantially as set forth. tube, and arranged to form a narrow annular 4. In aburner, the combination, with a wickcavity, 11, open only at the top, substantially tube surrounded by a vaporizing-cavity, b, as set forth. open only at the top, of the slide 0, arranged to be moved up and down on the tube inside, OSBORN or partly inside, of the said vaporizing-cavity, Witnesses: substantially as and for the purposes set forth. 0. MCOAULEY,

5. In a burner, the combination of a sheet- EVAN EVANS. 

